Same with Virgin in Sydney on my iPhone 4S.
Here is a complaint I have just sent to Virgin. Awaiting Reply.
SUB:
Affected by Mobile Data Usage bug in iOS6
Hi,
I seem to be one of those iPhone users affected by the mobile data usage bug in
iOS6 when connected to wifi.
My Virgin mobile data usage statistics shows that I have used 1080 MB of 3G data
between 10th Oct2012 and 23rd October 2012.
Certainly I have not used the mobile data to this extent. So as the bug reported
in the below links state, my phone must be using mobile data even when I am
connected to wifi.
There are articles about this bug on variuos tech websites and telecom network
forum (like Optus)
http://www.zdnet.com/who-will-pay-for-the-ios-bill-shock-problem-7000005222/
https://community.optus.com.au/t5/Apple/iOS6-and-CELLULAR-DATA/m-p/24496#U24496
Couple of days back (before reading these articles), I addressed my issue with a
virgin customer care associate who seem to be not aware of this bug either. So she
did not help me much.
Currently I have switched off my mobile data and its causing a great inconvenience
as I am not able to check my business mails while on the move.
Since I bought the iPhone from Virgin, I expect your consideration here.
I hope you can collect all the customer complaints and address it with apple for a
quicker bug fix and meanwhile give us the required data allowance to continue with
our day to day mobile data usage while on the move.
===========================
Meanwhile is there a way we can address this to apple customer care ? My iPhone 4S is under warranty but I dont think I have a valid technical assistance contract.